<template>
  <el-dialog
    model-value="swiperImageDialogVisible"
    title="幻灯设置"
    width="30%"
    @close="handleClose"
    center
  >
    <el-form
        ref="formRef"
        :model="form"
        label-width="100px"
        style="text-align: center"
        :rules="rules"
    >

      <el-form-item label="排列序号" prop="swiperSort">
        <el-input v-model="form.swiperSort" style="width: 100px"/>
      </el-form-item>



      <el-upload
          :headers="headers"
          class="avatar-uploader"
          :action="getServerUrl()+'/admin/product/uploadSwiperImage'"
          :show-file-list="false"
          :on-success="handleAvatarSuccess"
          :before-upload="beforeAvatarUpload"
      >
        <img v-if="imageUrl" :src="imageUrl" class="avatar" />
        <el-icon v-else class="avatar-uploader-icon"><Plus /></el-icon>
      </el-upload>

    </el-form>
    <template #footer>
        <span class="dialog-footer">
              <el-button type="primary" @click="handleConfirm">确认更换</el-button>
        </span>
    </template>
  </el-dialog>

</template>

<script setup>
import {defineEmits, defineProps, ref, watch} from 'vue'
import axios, {getServerUrl} from "@/util/axios"
import { ElMessage } from 'element-plus'
import {Plus} from "@element-plus/icons-vue";

const tableData=ref([])

const imageUrl=ref("")

const props=defineProps({
  imageDialogValue:{
    type:Object,
    default:()=>{},
    required:true
  }
})

const headers=ref({
  token:window.sessionStorage.getItem("token")
})


const rules=ref({

  swiperSort: [
    {
      required: true,
      message: '请输入排列序号'
    },
    {
      type:'number',
      message: '排序序号必须是数值类型',
      transform: (value) => Number(value)
    }
  ]

})


const form =ref({
  id:-1,
  swiperPic:'',
  swiperSort:0,
})

const formRef=ref(null)

watch(
    ()=>props.imageDialogValue,
    ()=>{
      //console.log("id="+props.id)
      form.value=props.imageDialogValue;
      imageUrl.value=getServerUrl()+'/image/findSwiper/'+form.value.swiperPic
    },
    {deep:true,immediate:true}
)

const emits=defineEmits(['update:modelValue','initProductList'])

const handleAvatarSuccess=(res)=>{
  imageUrl.value=getServerUrl()+res.data.src
   form.value.swiperPic=res.data.title;
}

const beforeAvatarUpload = (file) => {
  const isJPG = file.type === 'image/jpeg'
  const isLt2M = file.size / 1024 / 1024 < 2

  if (!isJPG) {
    ElMessage.error('图片必须是jpg格式')
  }
  if (!isLt2M) {
    ElMessage.error('图片大小不能超过2M!')
  }
  return isJPG && isLt2M
}

const handleClose=()=>{
  emits('update:modelValue',false)
}

const handleConfirm=async ()=>{

  formRef.value.validate(async(valid)=> {
    if(valid){
      let result=await axios.post("admin/product/save",form.value)
      let data=result.data;
      if(data.code==0){
        ElMessage.success("执行成功！");
        formRef.value.resetFields();
        emits("initProductList");
        handleClose();
      }else{
        ElMessage.error(data.msg);
      }
    }
  });


}


</script>


<style>

.avatar-uploader .el-upload {
  border: 1px dashed #d9d9d9;
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.avatar-uploader .el-upload:hover {
  border-color: #409eff;
}
.el-icon.avatar-uploader-icon {
  font-size: 28px;
  color: #8c939d;
  width: 178px;
  height: 178px;
  text-align: center;
}
.avatar {
  width: 178px;
  height: 178px;
  display: block;
}

</style>